Strength in the quadriceps muscles improves more (16.5 Nm) in older men with muscle loss who take collagen supplements during strength training than those taking a placebo (7.3 Nm).

Scientific Claim

Isokinetic quadriceps strength increases by 16.5 Newton-meters in elderly sarcopenic men after 12 weeks of resistance training with 15g/day collagen peptides, compared to 7.3 Newton-meters with placebo supplementation.

Original Statement

“IQS (TG +16·5 (sd 12·9) Nm/PG +7·3 (sd 13·2) Nm; P<0·05)”

From study:Collagen peptide supplementation in combination with resistance training improves body composition and increases muscle strength in elderly sarcopenic men: a randomised controlled trial

Evidence Quality Assessment

Claim Status

appropriately stated

Study Design Support

Design supports claim

Appropriate Language Strength

definitive

Can make definitive causal claims

Assessment Explanation

As an RCT with control group, the study supports causal language. The verb 'increases' is appropriate given the significant difference.

Evidence from Studies

Supporting (1)

Collagen peptide supplementation in combination with resistance training improves body composition and increases muscle strength in elderly sarcopenic men: a randomised controlled trial

Randomized Controlled Trial

Human

2015 Oct 28

Contradicting (0)

No contradicting evidence found

Source Study

Collagen peptide supplementation in combination with resistance training improves body composition and increases muscle strength in elderly sarcopenic men: a randomised controlled trial

Score: 62

DOI: 10.1017/S0007114515002810

Similar Assertions

Older men with muscle loss who do strength training and take collagen supplements gain more muscle mass (4.2 kg) than those taking a placebo (2.9 kg).

74%

Strength training boosts bone mass in older men with muscle loss, but adding collagen supplements doesn't make it better than just training alone.

72%

Older men with muscle loss who take collagen supplements during strength training lose more body fat (5.4 kg) than those taking a placebo (3.5 kg).

72%

Balance and coordination get better with strength training for older men with muscle loss, but collagen supplements don't make it better than training alone.

70%